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SD4

 

Surface mounted arrester SD4

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·Extremely compact 
·Broadband enabled 
·Very low Capacitance (1MHz:0.5pF or lower)
·Ceramic exterior gives the device excellent resistance to heat and mechanical shock. 
·Large current withstand capacity (max. 8/20μs - 5kA) gives the device excellent repeat surge withstand and heat environment characteristics. 
·With the same shape and form, we can provide products for telecommunication line and electrostatic countermeasures, etc. 
·Device packaging is embossed taping (also available separately), suitable for surface mounting.
·UL approved (UL497B, File No. E140906)
·Electronic equipment ·Protection for telecommunication lines
·Exchanges, PBX ·Telephones, fax machines

RoHS compliant product
*Design registered product

[Dimensions] W3.5×D4.4×H4.4

 
 
Product characteristics
 
Type SD4-75 SD4-90 SD4-145 SD4-200
DC sparkover voltage 100V/s 75V±20% 90V±20% 145V±20% 200V±20%
Impulse sparkover voltage 1kV/μs <=600V <=600V <=600V <=600V
AC discharge current AC50Hz 5A,1s,1time 5A,1s,1time 5A,1s,1time 5A,1s,1time
Impulse discharge current 8/20μ 2.5kA,1time 2.5kA,1time 2.5kA,1time 2.5kA,1time
Impulse life 100A,1,000times
(8/20μs)
100A,1,000times
(8/20μs)
100A,1,000times
(8/20μs)
100A,1,000times
(8/20μs)
Insulation resistance >=10,000MΩ
(50VDC)
>=10,000MΩ
(50VDC)
>=10,000MΩ
(50VDC)
>=10,000MΩ
(100VDC)
 
Type SD4-230 SD4-350
DC sparkover voltage 100V/s 230V±20% 350V±20%
Impulse sparkover voltage 1kV/μs <=650V <=750V
AC discharge current AC50Hz 5A,1s,1time 5A,1s,1time
Impulse discharge current 8/20μ 5kA,1time 5kA,1time
Impulse life 100A,1,000times
(8/20μs)
100A,1,000times
(8/20μs)
Insulation resistance >=10,000MΩ
(100VDC)
>=10,000MΩ
(100VDC)